God gave moses the ten commandment in the old testerment, it was so hard to keep and to carry it around in thise days of mose.
As christ came to earth to be with men he preached to us abiut the old testament. He never abolushed Gods commandment given to moses from God but instead he improved the ten commandment by inputing it and inscribing it in our heart.
As you are born to the word the lords commandment will always be installed into our heart through the word of God we listean.